近期《网络组建、维护与设计》课程学习总结一、路由器密码恢复ctrl+break>o>o/r0x2142>iwouldyoulike.........?noenablecopystartrunnconftenablesecret****endcopyrunnstartconftconfig-register0x2102end二、Ciscoios文件的导入、导出思科IOS的导出Router#dirRouter#copyflash:tftp:Sourcefilename[]?C2500-i-l.|2|-21.binAddresornameofremotehost[]?备份计算机的地址(tftp的地址)Destinationfilename[C2500-i-1.|2|-21.bin]?备份文件名.bin回车(!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!出现很多感叹号就说明成功了)思科ios的导入>o/r0x2101>irouter(boot)>enrouter(boot)#copytftpflash[0bytesused,4194304available,4194304total]Addressornameofremotehost[255.255.255.255]?192.168.25.32Sourcefilename?fengjiankun.bin（IOS映像文件名）Destinationfilename[fengjiankun.bin]?Accessingfile'fengjiankun.bin'on192.168.25.32...Loadinggeyi.binfrom192.168.25.32(viaEthernet0):![OK]DeviceneedserasurebeforecopyingnewfileEraseflashdevicebeforewriting?[confirm]Copy'fengjiankun.bin'fromserveras'fengjiankun.bin'intoFlashWITHerase?[yes/no]yErasingdevice...eeeeeeeeeeeeeeee...erasedLoadinggeyi.binfrom192.168.25.32(viaEthernet0):!!!!!!!!!!!!!!!!!!!!（！表示恢复成功）还原路由器虚拟寄存器的默认值（0x2102），恢复路由器的正常启动顺序，依次键入以下命令：router(boot)#conftrouter(boot)(config)#config-register0x2102router(boot)(config)#exitrouter(boot)#reload三、telnetEnConftEnablesecret密码Linevty04Password密码LoginEnd四、nat转换Router>enRouter#conftRouter(config)#intf0/1Router(config-if)#ipadd192.168.0.254255.255.255.0Router(config-if)#ipnatinRouter(config-if)#noshutRouter(config-if)#exitRouter(config)#intf0/0Router(config-if)#ipadd192.168.1.1255.255.255.0Router(config-if)#ipnatoutRouter(config-if)#noshutRouter(config-if)#exitRouter(config)#ipnatpoolnet192.168.1.1192.168.1.1netmask255.255.255.0Router(config)#ipnatinsidesourcelist1poolnetoverloadRouter(config)#access-list1permit192.168.0.00.0.0.255Router(config)#iproute0.0.0.00.0.0.0f0/0Router#copyrunstartDestinationfilename[startup-config]?Buildingconfiguration...[OK]五、Cisco交换路由的实验Switch>enSwitch#confts32(config)#hostnameS32-----更改交换机名称